Question

If in the above diagram the angle of refraction (r) is 30° then what would be the
angle of emergence (e) if the refractive index of the prism is v3
(A) 30°
(B) 60°
(C) 45°
(D) 90°

give a proper answer​

Answer 1

Answer:

The angle of emergence with refractive index v3 is 19.27 °

Answer 2

Answer:

ANSWER

angle of prism A is 30

angle of incidence is 60 degree

angle of deviation is 30 degree

i 1+i 2 =A+δ

the angle of emegrance i 2 =A+δ−i

1 =30+30−60=0

'the emergent ray r 1 +r 2 =Ai 2=0,r

2=0

r

1

=A=30

0

using snells law

n=

sinr

1

sini

1

=

sin30

sin60

=1.732

since emergent ray is normal

δ=δ

m

=30

0

sin30/2

sin(30+30/2)

=1.732